Home / 31,717.32-47,572.20-8,345.58

Finding the Fourth Proportional to 31,717.32, 47,572.20 and 8,345.58

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Solution

The fourth proportional to 31,717.32, 47,572.20 and 8,345.58 is: 12,517.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,717.32 : 47,572.20 = 8,345.58 : x
  2. Step 2: Convert to fraction form
    31,717.32/47,572.20 = 8,345.58/x
  3. Step 3: Cross multiply
    31,717.32x = 47,572.20 × 8,345.58
  4. Step 4: Simplify right side
    31,717.32x = 397,017,600.88
  5. Step 5: Solve for x
    x = 397,017,600.88/31,717.32
  6. Step 6: Final answer
    x = 12,517.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.